TW419725B - Method for manufacturing SOI wafer and SOI wafer - Google Patents
Method for manufacturing SOI wafer and SOI wafer Download PDFInfo
- Publication number
- TW419725B TW419725B TW088109014A TW88109014A TW419725B TW 419725 B TW419725 B TW 419725B TW 088109014 A TW088109014 A TW 088109014A TW 88109014 A TW88109014 A TW 88109014A TW 419725 B TW419725 B TW 419725B
- Authority
- TW
- Taiwan
- Prior art keywords
- soi
- wafer
- bonding
- soi layer
- oxide film
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 title description 32
- 235000012431 wafers Nutrition 0.000 claims abstract description 143
- 239000010408 film Substances 0.000 claims abstract description 76
- 230000002093 peripheral effect Effects 0.000 claims abstract description 42
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 25
- 239000010703 silicon Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 239000010409 thin film Substances 0.000 claims abstract description 22
- 230000001590 oxidative effect Effects 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims description 29
- 238000005530 etching Methods 0.000 claims description 26
- 239000007787 solid Substances 0.000 claims description 12
- 230000002829 reductive effect Effects 0.000 claims description 7
- 239000012808 vapor phase Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000002079 cooperative effect Effects 0.000 claims description 5
- 239000012071 phase Substances 0.000 claims description 5
- 238000003475 lamination Methods 0.000 claims description 3
- 235000015170 shellfish Nutrition 0.000 claims description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 abstract description 5
- 230000008021 deposition Effects 0.000 abstract description 2
- 229920005591 polysilicon Polymers 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 23
- 238000000227 grinding Methods 0.000 description 21
- 238000012545 processing Methods 0.000 description 13
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000873 masking effect Effects 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 229910052770 Uranium Inorganic materials 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000003251 Pruritus Diseases 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 229910003454 ytterbium oxide Inorganic materials 0.000 description 1
- 229940075624 ytterbium oxide Drugs 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
- H01L21/2003—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy characterised by the substrate
- H01L21/2007—Bonding of semiconductor wafers to insulating substrates or to semiconducting substrates using an intermediate insulating layer
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76251—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76251—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques
- H01L21/76256—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques using silicon etch back techniques, e.g. BESOI, ELTRAN
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Element Separation (AREA)
- Recrystallisation Techniques (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15608898A JP3635200B2 (ja) | 1998-06-04 | 1998-06-04 | Soiウェーハの製造方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW419725B true TW419725B (en) | 2001-01-21 |
Family
ID=15620052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW088109014A TW419725B (en) | 1998-06-04 | 1999-06-01 | Method for manufacturing SOI wafer and SOI wafer |
Country Status (5)
Country | Link |
---|---|
US (1) | US6534384B2 (ko) |
EP (1) | EP0964436A3 (ko) |
JP (1) | JP3635200B2 (ko) |
KR (1) | KR100606228B1 (ko) |
TW (1) | TW419725B (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102034687A (zh) * | 2009-09-28 | 2011-04-27 | S.O.I.Tec绝缘体上硅技术公司 | 键合和转移层的工艺 |
CN115799273A (zh) * | 2022-12-21 | 2023-03-14 | 中环领先半导体材料有限公司 | 一种绝缘体上硅晶圆及制备方法、半导体装置 |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6984571B1 (en) * | 1999-10-01 | 2006-01-10 | Ziptronix, Inc. | Three dimensional device integration method and integrated device |
JP2003078115A (ja) * | 2001-08-30 | 2003-03-14 | Shin Etsu Handotai Co Ltd | Soiウェーハのレーザーマーク印字方法、及び、soiウェーハ |
JP2004235478A (ja) * | 2003-01-30 | 2004-08-19 | Sumitomo Mitsubishi Silicon Corp | 貼り合わせsoi基板およびその製造方法 |
JP4066881B2 (ja) * | 2003-05-21 | 2008-03-26 | 信越半導体株式会社 | 表面処理方法、シリコンエピタキシャルウェーハの製造方法及びシリコンエピタキシャルウェーハ |
JP4677707B2 (ja) * | 2003-05-30 | 2011-04-27 | セイコーエプソン株式会社 | 電気光学装置用薄膜トランジスタアレイ基板の製造方法 |
KR101008224B1 (ko) | 2003-09-29 | 2011-01-17 | 매그나칩 반도체 유한회사 | 실리콘 온 인슐레이터 웨이퍼를 이용한 고전압 씨모스소자 및 그 제조방법 |
FR2880184B1 (fr) * | 2004-12-28 | 2007-03-30 | Commissariat Energie Atomique | Procede de detourage d'une structure obtenue par assemblage de deux plaques |
CN101124657B (zh) * | 2005-02-28 | 2010-04-14 | 信越半导体股份有限公司 | 贴合晶圆的制造方法及贴合晶圆 |
JP5122731B2 (ja) * | 2005-06-01 | 2013-01-16 | 信越半導体株式会社 | 貼り合わせウェーハの製造方法 |
JP4839818B2 (ja) * | 2005-12-16 | 2011-12-21 | 信越半導体株式会社 | 貼り合わせ基板の製造方法 |
JP5292810B2 (ja) | 2005-12-19 | 2013-09-18 | 信越半導体株式会社 | Soi基板の製造方法 |
FR2899594A1 (fr) | 2006-04-10 | 2007-10-12 | Commissariat Energie Atomique | Procede d'assemblage de substrats avec traitements thermiques a basses temperatures |
JP4858692B2 (ja) * | 2006-06-22 | 2012-01-18 | 日本電気株式会社 | チップ積層型半導体装置 |
US8586512B2 (en) * | 2007-05-10 | 2013-11-19 | Halliburton Energy Services, Inc. | Cement compositions and methods utilizing nano-clay |
US20090004865A1 (en) * | 2007-06-29 | 2009-01-01 | Kastenmeier Bernd E E | Method for treating a wafer edge |
EP2075830A3 (en) * | 2007-10-11 | 2011-01-19 | Sumco Corporation | Method for producing bonded wafer |
FR2935536B1 (fr) * | 2008-09-02 | 2010-09-24 | Soitec Silicon On Insulator | Procede de detourage progressif |
FR2935535B1 (fr) * | 2008-09-02 | 2010-12-10 | S O I Tec Silicon On Insulator Tech | Procede de detourage mixte. |
EP2200077B1 (en) * | 2008-12-22 | 2012-12-05 | Soitec | Method for bonding two substrates |
FR2954585B1 (fr) | 2009-12-23 | 2012-03-02 | Soitec Silicon Insulator Technologies | Procede de realisation d'une heterostructure avec minimisation de contrainte |
FR2955697B1 (fr) * | 2010-01-25 | 2012-09-28 | Soitec Silicon Insulator Technologies | Procede de recuit d'une structure |
FR2957189B1 (fr) | 2010-03-02 | 2012-04-27 | Soitec Silicon On Insulator | Procede de realisation d'une structure multicouche avec detourage post meulage. |
FR2961630B1 (fr) | 2010-06-22 | 2013-03-29 | Soitec Silicon On Insulator Technologies | Appareil de fabrication de dispositifs semi-conducteurs |
FR2962141A1 (fr) * | 2010-06-30 | 2012-01-06 | Soitec Silicon On Insulator Technologies | Procédé de désoxydation d'une structure multicouche a l'acide fluorhydrique |
US8310031B2 (en) | 2010-07-30 | 2012-11-13 | Memc Electronic Materials, Inc. | Semiconductor and solar wafers |
US20120028555A1 (en) | 2010-07-30 | 2012-02-02 | Memc Electronic Materials, Inc. | Grinding Tool For Trapezoid Grinding Of A Wafer |
US20120028439A1 (en) | 2010-07-30 | 2012-02-02 | Memc Electronic Materials, Inc. | Semiconductor And Solar Wafers And Method For Processing Same |
US8338266B2 (en) | 2010-08-11 | 2012-12-25 | Soitec | Method for molecular adhesion bonding at low pressure |
FR2964193A1 (fr) | 2010-08-24 | 2012-03-02 | Soitec Silicon On Insulator | Procede de mesure d'une energie d'adhesion, et substrats associes |
US20120129318A1 (en) * | 2010-11-24 | 2012-05-24 | Semiconductor Energy Laboratory Co., Ltd. | Atmospheric pressure plasma etching apparatus and method for manufacturing soi substrate |
FR2969373B1 (fr) * | 2010-12-20 | 2013-07-19 | St Microelectronics Crolles 2 | Procede d'assemblage de deux plaques et dispositif correspondant |
US9393669B2 (en) * | 2011-10-21 | 2016-07-19 | Strasbaugh | Systems and methods of processing substrates |
US9610669B2 (en) | 2012-10-01 | 2017-04-04 | Strasbaugh | Methods and systems for use in grind spindle alignment |
US9457446B2 (en) | 2012-10-01 | 2016-10-04 | Strasbaugh | Methods and systems for use in grind shape control adaptation |
CN104733300B (zh) * | 2013-12-23 | 2018-09-25 | 中芯国际集成电路制造(上海)有限公司 | 一种键合晶片的减薄方法 |
KR20180090494A (ko) * | 2017-02-03 | 2018-08-13 | 삼성전자주식회사 | 기판 구조체 제조 방법 |
CN114883186B (zh) * | 2022-07-11 | 2022-10-18 | 成都功成半导体有限公司 | 基于临时键合的晶圆背面加工方法及晶圆 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6050970A (ja) | 1983-08-31 | 1985-03-22 | Toshiba Corp | 半導体圧力変換器 |
JP2535957B2 (ja) | 1987-09-29 | 1996-09-18 | ソニー株式会社 | 半導体基板 |
JPH0719737B2 (ja) * | 1990-02-28 | 1995-03-06 | 信越半導体株式会社 | S01基板の製造方法 |
JPH0719739B2 (ja) | 1990-09-10 | 1995-03-06 | 信越半導体株式会社 | 接合ウェーハの製造方法 |
JPH04302160A (ja) * | 1991-03-29 | 1992-10-26 | Fujitsu Ltd | 半導体装置の製造方法 |
US5254830A (en) | 1991-05-07 | 1993-10-19 | Hughes Aircraft Company | System for removing material from semiconductor wafers using a contained plasma |
JP2653282B2 (ja) | 1991-08-09 | 1997-09-17 | 日産自動車株式会社 | 車両用道路情報表示装置 |
JPH06163341A (ja) * | 1992-11-18 | 1994-06-10 | Fujitsu Ltd | 半導体基板の製造方法 |
JP3352129B2 (ja) | 1992-12-04 | 2002-12-03 | 株式会社東芝 | 半導体基板の製造方法 |
JP3542376B2 (ja) | 1994-04-08 | 2004-07-14 | キヤノン株式会社 | 半導体基板の製造方法 |
US5494849A (en) * | 1995-03-23 | 1996-02-27 | Si Bond L.L.C. | Single-etch stop process for the manufacture of silicon-on-insulator substrates |
JPH08274285A (ja) * | 1995-03-29 | 1996-10-18 | Komatsu Electron Metals Co Ltd | Soi基板及びその製造方法 |
KR0168348B1 (ko) * | 1995-05-11 | 1999-02-01 | 김광호 | Soi 기판의 제조방법 |
JPH08330553A (ja) | 1995-05-29 | 1996-12-13 | Hitachi Ltd | Soiウエハおよびそれを用いた半導体集積回路装置の製造方法 |
JPH0964321A (ja) * | 1995-08-24 | 1997-03-07 | Komatsu Electron Metals Co Ltd | Soi基板の製造方法 |
JP3480480B2 (ja) | 1996-03-06 | 2003-12-22 | 三菱住友シリコン株式会社 | Soi基板の製造方法 |
US6090688A (en) * | 1996-11-15 | 2000-07-18 | Komatsu Electronic Metals Co., Ltd. | Method for fabricating an SOI substrate |
JP3352896B2 (ja) | 1997-01-17 | 2002-12-03 | 信越半導体株式会社 | 貼り合わせ基板の作製方法 |
JPH10223497A (ja) * | 1997-01-31 | 1998-08-21 | Shin Etsu Handotai Co Ltd | 貼り合わせ基板の作製方法 |
JPH10275905A (ja) * | 1997-03-31 | 1998-10-13 | Mitsubishi Electric Corp | シリコンウェーハの製造方法およびシリコンウェーハ |
CN100403543C (zh) * | 2001-12-04 | 2008-07-16 | 信越半导体株式会社 | 贴合晶片及贴合晶片的制造方法 |
-
1998
- 1998-06-04 JP JP15608898A patent/JP3635200B2/ja not_active Expired - Fee Related
-
1999
- 1999-06-01 TW TW088109014A patent/TW419725B/zh not_active IP Right Cessation
- 1999-06-03 EP EP99304328A patent/EP0964436A3/en not_active Withdrawn
- 1999-06-03 US US09/324,939 patent/US6534384B2/en not_active Expired - Lifetime
- 1999-06-03 KR KR1019990020363A patent/KR100606228B1/ko not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102034687A (zh) * | 2009-09-28 | 2011-04-27 | S.O.I.Tec绝缘体上硅技术公司 | 键合和转移层的工艺 |
CN115799273A (zh) * | 2022-12-21 | 2023-03-14 | 中环领先半导体材料有限公司 | 一种绝缘体上硅晶圆及制备方法、半导体装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0964436A2 (en) | 1999-12-15 |
JPH11354760A (ja) | 1999-12-24 |
US20010055863A1 (en) | 2001-12-27 |
JP3635200B2 (ja) | 2005-04-06 |
EP0964436A3 (en) | 2000-10-18 |
KR20000005859A (ko) | 2000-01-25 |
US6534384B2 (en) | 2003-03-18 |
KR100606228B1 (ko) | 2006-07-28 |
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